Abstract: An illumination apparatus that is to be disposed in a recess formed in a part of a building includes: a light-emitting module that includes a board and a plurality of light-emitting elements disposed on the board; a light diffuser that has translucency and covers the light-emitting module; and a specular reflector that is disposed between the light-emitting module and the light diffuser. The light-emitting module emits light toward the light diffuser, and the specular reflector reflects light from the light diffuser.

Abstract: An illumination system includes: a first luminaire that emits first illumination light having a color simulating a sky; a second luminaire that is disposed in a same space as the first luminaire, the second luminaire projecting, on an object, second illumination light simulating sunlight to create a sunny portion on the object; and a controller that causes the first luminaire to emit the first illumination light according to an environment reproduction condition.

Abstract: An illumination apparatus that is to be disposed in a recess formed in a part of a building includes: a light-emitting module that includes a board and a plurality of light-emitting elements disposed on the board; a light diffuser that has translucency and covers the light-emitting module; and a light reflector that includes a wall having light-reflecting properties and surrounding the plurality of light-emitting elements. Among the plurality of light-emitting elements, every two adjacent light-emitting elements are disposed on the board at a first interval. Among the plurality of light-emitting elements, a light-emitting element closest to the wall is disposed on the board with a second interval to the wall, the second interval being larger than ¼ of the first interval and smaller than the first interval.

Abstract: An illumination apparatus includes a plurality of light emitters, and a light control component that transmits light emitted from the plurality of light emitters. The light control component includes a first diffusion layer and a second diffusion layer. A first perpendicular haze is lower than a first diagonal haze, the first perpendicular haze indicating a diffusion degree of light traveling perpendicular to a light emission surface of the first diffusion layer, and the first diagonal haze indicating a diffusion degree of light traveling diagonal to the light emission surface of the first diffusion layer. A second perpendicular haze is higher than a second diagonal haze, the second perpendicular haze indicating a diffusion degree of light traveling perpendicular to a light emission surface of the second diffusion layer, and the second diagonal haze indicating a diffusion degree of light traveling diagonal to the light emission surface of the second diffusion layer.

Abstract: An illumination apparatus includes: a case having an opening portion; a first light source disposed in the case and including a plurality of light-emitting elements; a light diffuser which is disposed in the opening portion, diffuses and transmits light emitted from the first light source, and from which the diffused light and the transmitted light exit; a light emission component disposed outside a light exit region of the light diffuser on a light exit surface side of the light diffuser; and a second light source that emits light to the light emission component to cause the light emission component to radiate light.

Abstract: An illumination apparatus includes a plurality of light emitters, and a light control component that transmits light emitted from the plurality of light emitters. The light control component includes a first diffusion layer and a second diffusion layer. A first perpendicular haze is lower than a first diagonal haze, the first perpendicular haze indicating a diffusion degree of light traveling perpendicular to a light emission surface of the first diffusion layer, and the first diagonal haze indicating a diffusion degree of light traveling diagonal to the light emission surface of the first diffusion layer. A second perpendicular haze is higher than a second diagonal haze, the second perpendicular haze indicating a diffusion degree of light traveling perpendicular to a light emission surface of the second diffusion layer, and the second diagonal haze indicating a diffusion degree of light traveling diagonal to the light emission surface of the second diffusion layer.

Abstract: An illumination apparatus includes: a case having an opening portion; a light source disposed in the case and including a plurality of light-emitting elements; a light diffuser which is disposed in the opening portion, and diffuses and transmits light emitted from the plurality of light-emitting elements; and a controller that controls light emission from the light source. The controller: controls light emission from the plurality of light-emitting elements to project an image on the light diffuser, the image changing with time; and when changing the light emission from the plurality of light-emitting elements changing the image, controls the light emission from the light source to keep a change in at least one of (i) a light amount, (ii) a color temperature, and (iii) a spectral distribution of light emitted from the illumination apparatus within a predetermined range.

Abstract: A light environment rendering system includes: one lighting apparatus disposed on a part of a structure to form an illumination space; another lighting apparatus disposed on the part of a structure, at a position different from a position at which the one lighting apparatus is located, to form the illumination space; and a system controller which controls an operation of each of the lighting apparatuses. The system controller determines an illumination mode based on sky information that indicates at least one of a brightness and a color tone of a sky which are determined at least based on an azimuth direction and a height of the sun, and causes each of the lighting apparatuses to perform lighting simulating a sky according to the illumination mode.

Abstract: A lighting apparatus includes: a case having an opening portion; a light emission panel in the case, the light emission panel having a light emission surface which emits light having a light distribution which dynamically changes; and a light distribution modification panel in the opening portion and having a distribution-modified light emission surface which modifies the light distribution of the light to emit light having a modified light distribution. The light emission panel emits, as the light having the light distribution, light having at least one of a luminance distribution and a chromaticity distribution of a first image to be presented on the light emission surface. The light distribution modification panel diffuses and transmits the light emitted from the light emission surface to emit light such that the at least one distribution of a second image to be presented on the distribution-modified light emission surface is changed to a blurred state.

Abstract: A light exposure system includes an external apparatus that is placed on a facility and a portable terminal that communicates with the external apparatus, and manages the amount of light which the user is exposed to. Furthermore, the external apparatus transmits information regarding the amount of light which the user is exposed to, to the portable terminal. In addition, the portable terminal includes: a terminal-side controller which receives the information from the external apparatus and calculates the cumulative value of the amount of light from the information, when a communication is established with the external apparatus; and a display that displays the cumulative value calculated by the terminal-side controller.

Abstract: A lighting apparatus includes: a white light source; a blue light source; a reflector layer which reflects light; a light diffuser layer which is light transmissive and disposed on an anterior surface side of the reflector layer; and a scatter panel which is light transmissive and disposed on an anterior surface side of the light diffuser layer to face the light diffuser layer. At least a portion of a gap between the scatter panel and the reflector layer and at least a portion of a gap between the scatter panel and the light diffuser layer change from a first end side to a second end side of the lighting apparatus. The white light source and the blue light source are disposed on the first end side of the lighting apparatus to emit light toward the light diffuser layer and the scatter panel.

Abstract: A light environment producing apparatus includes: a light source; a light diffuser having a translucency; and a case which houses the light source. In addition, the case has a blue non-mirror finished inner surface which is a light diffusing surface. Furthermore, the light diffusing surface receives light emitted from the light source. The light diffuser is fixed to the case so as to allow passage of light diffused by the light diffusing surface.

Abstract: A lighting apparatus includes: a light source; a reflector plate which reflects light; and a diffuser plate which is light transmissive and is disposed to face the reflector plate. A gap between the diffuser plate and the reflector plate gradually decreases from a lower portion side of the diffuser plate and the reflector plate to an upper potion side of the diffuser plate and the reflector plate. The light source is disposed on the lower portion side to emit light toward the diffuser plate and the reflector plate.

Abstract: A light environment rendering system includes: one lighting apparatus disposed on a part of a structure to form an illumination space; another lighting apparatus disposed on the part of a structure, at a position different from a position at which the one lighting apparatus is located, to form the illumination space; and a system controller which controls an operation of each of the lighting apparatuses. The system controller determines an illumination mode based on sky information that indicates at least one of a brightness and a color tone of a sky which are determined at least based on an azimuth direction and a height of the sun, and causes each of the lighting apparatuses to perform lighting simulating a sky according to the illumination mode.

Abstract: A lighting apparatus includes: a case having an opening portion; a light emission panel in the case, the light emission panel having a light emission surface which emits light having a light distribution which dynamically changes; and a light distribution modification panel in the opening portion and having a distribution-modified light emission surface which modifies the light distribution of the light to emit light having a modified light distribution. The light emission panel emits, as the light having the light distribution, light having at least one of a luminance distribution and a chromaticity distribution of a first image to be presented on the light emission surface. The light distribution modification panel diffuses and transmits the light emitted from the light emission surface to emit light such that the at least one distribution of a second image to be presented on the distribution-modified light emission surface is changed to a blurred state.

Abstract: An illumination apparatus that is to be disposed in a recess formed in a part of a building includes: a light-emitting module that includes a board and a plurality of light-emitting elements disposed on the board; a light diffuser that has translucency and covers the light-emitting module; and a light reflector that includes a wall having light-reflecting properties and surrounding the plurality of light-emitting elements. Among the plurality of light-emitting elements, every two adjacent light-emitting elements are disposed on the board at a first interval. Among the plurality of light-emitting elements, a light-emitting element closest to the wall is disposed on the board with a second interval to the wall, the second interval being larger than ¼ of the first interval and smaller than the first interval.

Abstract: An illumination system includes: a first luminaire that emits first illumination light having a color simulating a sky; a second luminaire that is disposed in a same space as the first luminaire, the second luminaire projecting, on an object, second illumination light simulating sunlight to create a sunny portion on the object; and a controller that causes the first luminaire to emit the first illumination light according to an environment reproduction condition.

Abstract: An illumination apparatus that is to be disposed in a recess formed in a part of a building includes: a light-emitting module that includes a board and a plurality of light-emitting elements disposed on the board; a light diffuser that has translucency and covers the light-emitting module; and a specular reflector that is disposed between the light-emitting module and the light diffuser. The light-emitting module emits light toward the light diffuser, and the specular reflector reflects light from the light diffuser.

Abstract: An illumination apparatus includes: a case having an opening portion; a first light source disposed in the case and including a plurality of light-emitting elements; a light diffuser which is disposed in the opening portion, diffuses and transmits light emitted from the first light source, and from which the diffused light and the transmitted light exit; a light emission component disposed outside a light exit region of the light diffuser on a light exit surface side of the light diffuser; and a second light source that emits light to the light emission component to cause the light emission component to radiate light.

Abstract: An illumination system includes: a first luminaire that is of an internal lighting type and includes a light emitter that emits first illumination light having a color simulating a sky; and a second luminaire that is of a projection type and includes a projector that projects, on an object, second illumination light having a color simulating sunlight. The first luminaire and the second luminaire are disposed in a same space, and the first luminaire is disposed higher with respect to a floor than a projection area created on the object by the second illumination light.